| Ratings 
 
 
  | Year | Rank | Edo | Dev. | Games |  
  | 1899 | 832 | 1905 | (106) | 8 |  
 
Rating table notes
 | 
| Biographical data |  | 
   | Name: Zēvers, Jānis |  | Also known as: Johann Sehwers |  
   | Born: 28 June 1868 |  
   | Died: 7 Nov. 1940 |  |  |  |  
   | References |  | 
| Books |  
   | Di Felice, Chess Results, 1747-1900, page 232 |  
   | Gaige, Chess Personalia, page 478 |  
   | Hooper and Whyld, Oxford Companion (1st ed.), page 334 |  
   | Hooper and Whyld, Oxford Companion (2nd ed.), page 401 |  
   | Thulin, Name index to CTC, page 244 |  |  |